Britax Safe'n'Sound Instructions For Installation & Use page 55

ALTERNATIVE INSTALLATION IF SEATBELT
D. Feed the straps through the Gated 3-Bar Slide to
remove any slack.
When fitting the Curved Gated Slide, the seat belt route
can only go one way, as shown above.
Use this seat belt configuration to install the child restraint
according to the instructions on pages 27 to 28.
Remove all slack in the lap belt to ensure the base is held
firmly against the seat back. This may require adjustment of
the strap through the gated 3-bar slide.
IMPORTANT:
Remove the gated 3 bar
slide from the seat belt as
soon as the child restraint
is removed so that an adult
can use the seat belt as a
lap-sash seatbelt.
Instructions for Installation & Use
LOOSENS
Sash belt
portion
Lap belt
portion
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